CN214501796U - Injection type oil cooling refrigeration equipment - Google Patents

Abstract

The embodiment of the utility model discloses injection type oil cooling refrigeration plant. The injection type oil cooling refrigeration equipment comprises a compressor, an injector, an oil cooler and a condenser; the ejector is arranged in an exhaust pipeline between the compressor and the condenser. The utility model discloses injection type oil cooling refrigeration plant improves exhaust flow rate through adding an ejector on equipment exhaust duct, and the gravitation that the rethread improved exhaust flow rate and produced provides refrigerant power for oil cooling, and it saves traditional external long balanced pipeline for the pipeline integrated level is higher, can reduce the external long balanced pipeline of being connected with on-the-spot evaporative condenser, and can effectively reduce evaporative condenser's mounting height.

Description

Injection type oil cooling refrigeration equipment

Technical Field

The utility model belongs to the technical field of the refrigeration plant correlation technique and specifically relates to an injection type oil cooling refrigeration plant is related to.

Background

In compression-type refrigeration systems, control of the compressor oil temperature directly affects the operation and efficiency of the compressor. Oil cooling is widely used in compressor equipment due to stable operation. More and more manufacturers integrate the thermosyphon tank and the cooler into one equipment prying block to achieve the convenience of equipment installation.

As shown in fig. 1, the conventional siphon oil cooling method is to supply refrigerant to the oil cooling tank by the hydrostatic pressure of the liquid column generated by the height difference between the siphon tank and the oil cooling tank, and then discharge the gasified refrigerant to an external heat exchanger (e.g., an evaporative condenser) through a gas balance pipe. For example, utility model No. 201921442412.5 discloses a thermosiphon oil-cooled parallel device of the type using the above principle.

The disadvantages of this device are:

1. only the thermosiphon liquid storage device is integrated on the equipment, a long external balance pipe still needs to be installed to the top of the condenser, and the equipment installation site still has large workload.

2. The evaporative condenser is installed about 3 meters above the height H of the apparatus.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides an injection type oil cooling refrigeration plant.

The injection type oil cooling refrigeration equipment comprises a compressor, an injector, an oil cooler and a condenser; the ejector is arranged in an exhaust pipeline between the compressor and the condenser.

According to a preferred embodiment of the present invention, the exhaust port of the compressor is connected to the air inlet of the ejector, and the exhaust port of the ejector is connected to the air inlet of the condenser; the liquid outlet of the condenser is connected with the oil cooler through a liquid return pipeline; and an injected fluid inlet of the injector is connected with the oil cooler through a branch pipe of the exhaust pipeline.

Compared with the prior art, the utility model discloses injection type oil cooling refrigeration plant has following beneficial effect:

the utility model discloses injection type oil cooling refrigeration plant produces high pressure through the ejector through adding an ejector on equipment exhaust duct to improve exhaust flow rate, the gravitation that rethread improved exhaust flow rate and produced provides refrigerant power for oil cooling, and it saves traditional external long balance pipe, requires to reduce evaporative condenser's mounting height. Thereby make the utility model discloses injection type oil cooling refrigeration plant pipeline integrated level is higher, can reduce the external long balanced pipeline of being connected with on-the-spot evaporative condenser to can effectively reduce evaporative condenser's mounting height.

Additional features of the invention will be set forth in part in the description which follows. Additional features of the invention will be set forth in part in the description which follows and in part will be apparent to those having ordinary skill in the art upon examination of the following and the accompanying drawings or may be learned from the manufacture or operation of the embodiments. The features of the present disclosure may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Like reference symbols in the various drawings indicate like elements. Wherein the content of the first and second substances,

FIG. 1 is a schematic structural diagram of a prior art siphon oil cooling refrigeration device;

fig. 2 is a schematic structural diagram of an injection type oil-cooled refrigeration apparatus according to some embodiments of the present invention;

fig. 3 is a schematic diagram illustrating the connection of an ejector in an ejector-type oil-cooled refrigeration apparatus according to some embodiments of the present invention.

List of reference numerals

10-apparatus body

100-frame

200-compressor

300-oil separator

310-first exhaust

400-oil cooler

410-second exhaust port

420-inlet for refrigerant fluid

500-ejector

510-Inlet of ejector

520-eductor vent

530-inlet for injected fluid

600-condenser

700-liquid return pipeline

800-exhaust duct

900-branch pipe

20-external long balance pipeline

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of the present invention and in the accompanying drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, if the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like are referred to, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, in the present disclosure, the terms "mounted," "disposed," "provided," "connected," "sleeved," and the like should be construed broadly if they are referred to. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment of the utility model discloses injection type oil cooling refrigeration plant.

As shown in fig. 2, the injection type oil cooling refrigeration equipment includes an equipment body 10 and an injector 500.

Among them, the apparatus body 10 may include a compressor 200, an oil separator 300, and an oil cooler 400. As a preferred embodiment, the compressor 200, the oil separator 300, and the oil cooler 400 may be integrally provided on the frame 100 such that the compressor 200, the oil separator 300, and the oil cooler 400 are formed as an integrated apparatus on the frame 100.

The device body 10 is connected to an air inlet and a liquid outlet of the condenser 600 through an exhaust pipe 800 and a liquid return pipe 700, respectively. The ejector 500 is provided on the exhaust duct 800.

In some embodiments, the apparatus body 10 may be connected to the air inlet of the condenser 600 through the ejector 500 and the exhaust duct 800 before the oil separator 300.

For example, in the present embodiment, the apparatus body 10 may include a compressor 200 and an oil cooler 400 connected to the compressor 200.

Wherein, the compressor 200 and the oil cooler 400 are connected with the air inlet of the condenser 600 through the exhaust pipe 800 and the ejector 500. The drain of the condenser 600 is connected to the oil cooler 400 via a return line 700.

Specifically, as shown in fig. 3, the inlet 510 of the ejector 500 is connected to the compressor 200 through an exhaust pipe 800. The ejector exhaust port 520 of the ejector 500 is connected to the inlet of the condenser 600 through the exhaust duct 800. The drawn fluid inlet 530 of the eductor 500 is connected to the oil cooler 400 by a branch 900 of the exhaust conduit.

In some embodiments, the apparatus body 10 may be connected to the air inlet of the condenser 600 after the oil separator 300 through the ejector 500 and the exhaust duct 800.

For example, in the present embodiment, the apparatus body 10 may include a compressor 200, an oil separator 300, and an oil cooler 400.

Wherein, the oil outlet of the compressor 200 is connected with the oil separator 300. The oil separator 300 is connected to an oil cooler 400. The oil cooler 400 is connected to an oil return port of the compressor 200. The oil separator 300 and the oil cooler 400 are connected to an air inlet of the condenser 600 through an exhaust duct 800 and an ejector 500. The drain of the condenser 600 is connected to the oil cooler 400 via a return line 700.

As shown in fig. 3, the air inlet 510 of the eductor 500 is connected to the oil separator 300 by an exhaust conduit 800. The ejector exhaust port 520 of the ejector 500 is connected to the inlet of the condenser 600 through the exhaust duct 800. The drawn fluid inlet 530 of the eductor 500 is connected to the oil cooler 400 by a branch 900 of the exhaust conduit.

Specifically, as shown in fig. 2 and 3, a first exhaust port 310 is provided at the top of the oil separator 300. The first exhaust port 310 is connected to the inlet port 510 of the eductor 500 by an exhaust conduit 800. A first compressor oil inlet and a first compressor oil outlet are provided at the bottom of the oil separator 300. The oil inlet of the first compressor oil is communicated with the oil outlet of the compressor 200 through a first pipeline. The first compressor oil outlet is communicated with the oil cooler 400.

A second exhaust port 410 is provided at the top of the oil cooler 400. The second exhaust port 410 is connected to the injected fluid inlet 530 of the injector 500 by a branch 900 of the exhaust conduit. A refrigerant fluid inlet 420 is further provided at the top of the oil cooler 400. The refrigerant fluid inlet 420 is connected to the drain of the condenser 600 by a return fluid conduit 700.

A second compressor oil inlet and a second compressor oil outlet are provided at the bottom of the oil cooler 400. The oil inlet of the second compressor is communicated with the oil outlet of the first compressor through a third pipeline. The oil outlet of the second compressor is communicated with the oil inlet of the compressor 200 through a fourth pipeline.

Further, in some embodiments, the apparatus body 10 includes a plurality of compressors 200 arranged in parallel, so that it is formed as a compressor apparatus.

The utility model discloses injection type oil cooling refrigeration plant working process as follows:

when the compressor 200 works, high-temperature compressor oil flows out of an oil outlet of the compressor 200 and enters the oil separator 300 through a first compressor oil inlet arranged at the bottom of the oil separator 300; then enters the oil cooler 400 through a first compressor oil outlet arranged at the bottom of the oil separator 300; meanwhile, the inner liquid refrigerant in the condenser 600 enters the oil cooler 400 through the liquid return pipeline 700 to cool the high-temperature compressor oil entering the oil cooler 400; the cooled compressor oil enters the compressor 200 through an oil return port of the compressor 200; meanwhile, the ejector 500 operates to connect the refrigerant, which has been increased in temperature in the oil separator 300 and the oil cooler 400, to the condenser 600 through the exhaust pipe 800, so that the refrigerant is cooled.

The ejector is added on the exhaust pipeline of the equipment and generates high pressure, so that the exhaust flow rate is improved, and then the refrigerant power is provided for oil cooling by the attraction generated by improving the exhaust flow rate, the traditional external long balance pipeline 20 is omitted, and the requirement on the installation height of the evaporative condenser is reduced.

The utility model discloses injection type oil cooling refrigeration plant pipeline integrated level is higher, can reduce the external long balanced pipeline of being connected with on-the-spot evaporative condenser to can effectively reduce evaporative condenser's mounting height, thereby save the cost.

It should be noted that all of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

In addition, the above embodiments are exemplary, and those skilled in the art can devise various solutions in light of the disclosure, which are also within the scope of the disclosure and the protection scope of the present invention. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (2)

1. The injection type oil cooling refrigeration equipment is characterized by comprising a compressor (200), an injector (500), an oil cooler (400) and a condenser (600);

the ejector (500) is disposed in a discharge duct (800) between the compressor (200) and the condenser (600).

2. The injection type oil cooling refrigeration equipment according to claim 1,

the exhaust port of the compressor (200) is connected with the air inlet (510) of the ejector (500), and the exhaust port (520) of the ejector (500) is connected with the air inlet of the condenser (600);

the liquid outlet of the condenser (600) is connected with the oil cooler (400) through a liquid return pipeline (700);

the inlet (530) of the ejector (500) for the ejected fluid is connected to the oil cooler (400) via a branch (900) of the exhaust line (800).

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